Everpure ROM IV Owner's manual

ROM IV

Filtration System

INSTALLATION INSTRUCTIONS

English ................................Pages 2-23

ROM IV

Sistema de filtración

INSTRUCCIONES DE INSTALACIÓN

Español ............................. Páginas 24-45

ROM IV

Système de filtration

DIRECTIVES D'INSTALLATION

Français .............................. Pages 46-67

1

EVERPURE ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

EVERPURE ROM IV REVERSE OSMOSIS (RO) SYSTEM

2 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

INTRODUCTION

The ROM IV Reverse Osmosis (RO) System is designed to provide up to two (2) years of membrane life. This system is NSF

Certified to reduce a variety of contaminants.

INSPECTION

Before mounting the ROM IV System, inspect the parts. Use the table and illustration provided to verify the parts and

quantities. If any parts are missing, contact Customer Service at 800.279.9404 or by email at tech-support@pentair.com.

Parts Part Number

1. Head Assembly Special Order

2. RO Membrane ROM-G75 EV929775

3. ROM-PRE Prefilter Cartridge EV929675*

4. ROM-PST Postfilter Cartridge EV929676*

5. Tank Valve EV311655

6. Drain Saddle Valve EV311754

7. Port Plug EV310876

8. Storage Tank EV314698

9. Faucet Adapter EV312938

10. 3/8" Plastic Tubing (White) EV312843

11. 3/8" Plastic Tubing (Blue) EV544600

12. 1/4" Plastic Tubing Assembly (Red) EV305061

13. Lead-Free Air Gap Drinking Water Faucet SH244820

14. Plug, 3/8" Quick-Connect EV314487

15. Water Supply Adapter 4004337

*Prefilter and Postfilter cartridges sold as a set, part number

EV929670

1

24

3

5

8

12

11 10 9

6* 13

14

7

REPLACEMENT PARTS

Contact your local Pentair Everpure Dealer for filter cartridges or system replacement parts.

15

EVERPURE ROM IV REVERSE OSMOSIS (RO) SYSTEM

3 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

Tools Required

• Hand or Electric Drill • Phillips Screwdriver

• Adjustable Wrenches (2) • Towel

• File • Safety Glasses

• Pencil • Tape Measure

• Utility Knife or Tube Cutter

(for plastic tubing) • Drill Bits:

1/4-inch and 3/8-inch

Optional Materials

(For sinks without extra hole for faucet)

• Hand or Electric Drill • Center Punch

• Plumber Tape • Respirator

• Drill Bits: 1/4-inch and

3/8-inch • 1-3/8 inch Bi-metal or

Carbide Tipped Hole Saw

NOTE: Not all tools listed will be necessary for installation.

Read installation procedures before starting to

determine required tools.

SELECTING A MOUNTING LOCATION

1. Give consideration to the weight of the unit when

operating, i.e. when filled with water. Operating weight of

the ROM IV RO System is:

• System without Storage Tank - 10.2 lbs (4.6 kgs)

• Storage Tank - 29.4 lbs (13.3 kgs)

2. The location should allow for:

• Minimum clearance of 2-1⁄2 inches (6.3 cm) under the

cartridge(s) so they can be lowered for removal

and replacement.

• Adequate space for “in” and “out” water line

connections.

• Be near a drain for flushing.

DIMENSIONS

(39.4 cm)

15.50

(24.1 cm)

9.50

(22.5 cm)

8.85

(12.5 cm)

4.92

3.10

3.25

(40.6 cm)

16.00"

(26.6cm)

10.5"

Figure 1

4 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

OPERATING SPECIFICATIONS

WARNING: Before installing the system, make certain

your water supply complies with the following

operating specifications. Failure to do so may

reduce the effectiveness of the system and will

void the warranty. Consult your local water

treatment utility or a certified water testing lab

to determine the quality for your water.

Temperature: 32-120°F (0-49°C)

Pressure: 40-100 psi (2.7-6.89 bar), non-shock

Total Dissolved Solids: 1000 ppm maximum

Maximum Hardness: 143 ppm

Sulfide, Iron and

Manganese:

Less than 0.1 ppm

Chlorine in Water Supply: Free chlorine - 0.1 ppm maximum

Water Supply pH Limits: 4 to 11

Turbidity: 1.0 NTU maximum

For cold water use only.

GENERAL PRECAUTIONS

WARNING: Do not use with water that is microbiologically

unsafe or of unknown quality without adequate

disinfection before or after the system. Systems

certified for cyst reduction may be used on

disinfected waters that may contain

filterable cysts.

WARNING: The ROM IV RO System contains replaceable

components that are critical to the efficiency of

the system. Replacement of the reverse osmosis

component should be with one of identical

specifications, as defined by the manufacturer,

to assure the same efficiency and contaminant

reduction performance.

WARNING: The ROM IV RO System contains a replaceable

RO membrane cartridge, critical for the effective

reduction of total dissolved solids. Product water

should be tested periodically to verify that the

system is working properly.

WARNING: The ROM IV RO System shall only be used for

arsenic reduction on chlorinated water supplies

containing detectable residual free chlorine

at the system inlet. Water systems using an

in-line chlorinator should provide a one-minute

chlorine contact time before the unit.

WARNING: The ROM IV RO System will not protect against

disease-causing bacteria or remove

naturally-occurring harmless bacteria.

CAUTION: The ROM IV RO System must be protected against

freezing which can cause the filter housing to

crack, resulting in water leakage.

CAUTION: Turn off water supply to head without cartridge if

it must be left unattended for an extended period

of time.

CAUTION: Do not use electrical heating tape on this unit.

NOTE: Substances listed as reduced are not necessarily in

your water. System must be maintained according to

manufacturer's instructions, including replacement

of filter cartridges.

NOTE: Your water must be within required limits for

satisfactory operation. If not, the RO membrane

cartridge’s life may be shortened and your warranty

will be voided (see Operating Specifications).

NOTE: Install on cold water line only.

NOTE: Do not install where system will be exposed to direct

sunlight.

NOTE: Make certain that installation complies with all state

and local laws and regulations.

NOTE: The filter cartridges and RO membrane cartridge

included with the system have limited service lives.

Changes in taste, odor, and color of the filtered water

indicate that the cartridges and/or membrane should

be replaced.

NOTE: During extended periods of non-use (such as during

a vacation), remove the membrane cartridge and

the filter cartridges from the unit and place them

in a sealed plastic bag. Store the cartridges in the

refrigerator for future use. When restarting the unit,

replace all cartridges and flush per instructions.

NOTE: If the ROM IV RO System stands for more than two (2)

to three (3) days without being used, the storage tank

should be emptied.

NOTE: Use only plumbers tape without adhesive backing

to seal joints. Do not use pipe compound (“pipe

dope”), sticks, or similar compounds with this unit;

they contain petroleum derivatives which can cause

crazing and cracking of the plastic in the filter

housing.

NOTE: Use only soap and water to clean components.

NOTE: Do not use aerosol sprays (bug spray, cleaning

fluids, etc.) near the ROM IV RO System. They contain

organic solvents which can cause crazing and

cracking of the plastic in the filter housing.

NOTE: After prolonged periods of non-use, such as a

vacation, it is recommended that the system be

flushed thoroughly. Let water run for two (2) to three

(3) minutes before using.

NOTE: Do not use a torch near the unit.

5 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

INSTALLATION

• Please read all instructions and precautions before

installing and using your ROM IV.

• For standard, under-sink installation on 3/8" (9.52

mm) steel, brass, or copper cold water line.

• When selecting a mounting location of the system

and tank, take into consideration the length of tubing

required for connections between existing plumbing

and system components. Some installation sites may

require more tubing than provided in the kit.

• Numbered diagrams correspond with numbered steps.

INSTALLING THE WATER SUPPLY ADAPTER

The supply adapter fits 1/2"-14 NPS supply threads or 3/8"

x 3/8" compression. If local codes permit, it may be used

to connect the system to the cold water supply line. If local

codes do not permit the use of the supply adapter, alternate

connectors can be obtained from your local supplier.

DIRECTIONS:

A. Turn off cold water supply line. If cold water line does not

have a shut-off valve under the sink, you should install

one.

B. Turn on the cold water faucet and allow all water to drain

from line.

C. Disconnect riser cold water supply valve.

D. Ensure the sealing gasket is fully seated into the feed

adapter valve female thread.

E. Install feed adapter valve onto supply valve as desired.

The feed adapter valve may be installed at the bottom of

the supply hose or the top of the cold water line. Hand

tighten only.

F. Connect the riser to the feed adapter valve.

NOTE: Be careful not to cross-thread.

1

6 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

FAUCET QUICK START

1 Mounting Hole Dimensions 2 Attach Reject Water Tubing

1-3/8" to 1-1/2" Dia

2" Max

sink goes

here

3/8" Red

Tubing To

Drain

1/4" Red

Tubing

Elbow With

Flow Control

3 Attach Quick-Connector to Faucet 4 Attach Product Water Tubing

3/8"

Blue

Tubing

5 Position Faucet 6 Add "C" Washer and Tighten

Insert

Tighten

1

2

7 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

SYSTEM QUICK START

ROM IV RO System 1 Secure Manifold

10.2 lbs

(4.62 kgs)

2 Tubing Locations 3 Connect Tubing to ROM-G75 Cartridge

Blue 3/8" Tubing

To Tank

Blue 3/8" Tubing

To Faucet

White 3/8" Tubing

1-3/4" Length

Untreated Water

In - 3/8"

8 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

4 Install ROM-G75 Cartridge 5 Install Cartridges

ROM-G75

1

2

6 7 Assemble Tank

ROM-PRE

ROM-PST

1

2

1

2

3/16”

90°

1

2

9 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

8 Connect To Drain

9 Connect Tank Tubing

Blue 3/8"

Tubing

Red 1/4" Tubing

To Faucet

Red 3/8"

Tubing

Blue 3/8"

Tubing

5 to 7 PSI

(0.34 to 0.48 Bar) 35 lbs

(15.9 kgs)

White 3/8"

Tubing

10 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

PUT SYSTEM INTO OPERATION QUICK START

1 Flush ROM-PRE Cartridge

Open

ROM-PRE

Closed

Flush for 5

minutes

Remove

Plug

Closed

Insert

Tubing

Red tubing

to faucet not

shown

OFF

To

Drain

Close to connect tubing

Open for flush cycle

11 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

2 Flush ROM-G75 and ROM-PST Cartridges

Open

Insert

Plug

Open

Remove

Tubing

Red tubing

to faucet not

shown

OPEN

To

Drain

Close to remove tubing

Open for flush cycle

ROM-G75

ROM-PST

Flush for 12 hours

12 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

3 Final Flush

Open

Red tubing

to faucet not

shown

To

Drain

Open

ROM-G75

ROM-PRE

ROM-PST

Close for 3 hours

Open for 5 minutes

Repeat 3 times

13 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

HOW REVERSE OSMOSIS (RO) WORKS

The ROM IV RO System uses a semi-permeable membrane to

reduce dissolved salts, improving the taste and odor of your

water. The RO membrane cartridge contains multiple layers

of micron-thin film wound around a hollow center core. Water

molecules can pass through the cartridge, while dissolved

salts are rejected.

Your water supply is prefiltered to reduce dirt and chlorine

that may foul the membrane. The RO membrane cartridge

separates this prefiltered water into PRODUCT WATER and

REJECT WATER. Water pressure forces water through the

membrane within the RO membrane cartridge, and into

the storage tank. This is the product water. Dissolved salts

cannot pass through the membrane and are sent to the

drain as reject water. When the faucet is opened, product

water (permeate) is drawn from the storage tank through a

post-polishing filter. The post-polishing filter takes out any

remaining taste or odor in the water and provides you and

your family with cleaner, great-tasting water.

The ROM IV RO System also features an auto shut-off valve

which shuts off the system once the pressure in the storage

tank reaches 2/3 of the incoming water pressure (your water

pressure). When you open the faucet to draw water from the

storage tank, the pressure inside the tank drops and the auto

shut-off valve opens. The system then begins to operate,

replenishing the water you took from the storage tank.

Depending on the system's efficiency, for each gallon of water

produced, up to 1 gal (3.79 L) is discharged as reject water.

The storage tank can hold up to 3.2 gals (12.1 L) of water at a

time.

NOTE: When used under operating conditions specified

in this manual, the RO membrane cartridge of the

ROM IV RO System should last 12 to 24 months. The

precise life span of the RO membrane cartridge

will depend on the quality of the water entering

the system and the frequency with which you use

it. Frequent use prevents the dissolved salts from

building up on the membrane as scale. The more

water the system is required to produce, the longer

the membrane will last.

INSTALLATION

NOTE: Please read all instructions, specifications, and

precautions before installing and using your

ROM IV RO System.

NOTE: The ROM IV RO System may be installed under a sink,

counter or water cooler.

NOTE: The ROM IV RO System is installed vertically.

NOTE: Numbered diagrams correspond with

numbered steps.

Selecting the Faucet Location

NOTE: The drinking water faucet should be positioned with

function, convenience, and appearance in mind. An

adequate flat area is required to allow faucet base to

rest securely. The faucet fits through a 1-3/8" hole.

Most sinks have pre-drilled 1-3/8" or 1-1⁄2" diameter

holes that may be used for faucet installation. If

these pre-drilled holes cannot be used or are in an

inconvenient location, it will be necessary to drill a

1-3/8" hole. This procedure may generate dust which

can cause severe irritation if inhaled or come in

contact with the eyes. The use of safety glasses and

respirator for this procedure is recommended.

WARNING: Do not attempt to drill through an

all-porcelain sink. If you have an all-porcelain

sink, mount the faucet in pre-drilled sprayer

hole or drill through countertop next to sink.

WARNING: When drilling through a countertop, make sure

the area below the drilled area is free of wiring

and piping. Make certain that you have ample

room to make the proper connections to the

bottom of the faucet.

WARNING: Do not drill through a countertop that is more

than 1-inch thick.

WARNING: Do not attempt to drill through a tiled, marble,

granite or similar countertop. Consult a plumber

or the countertop manufacturer for advice or

assistance.

1. Line bottom of sink with newspaper to help prevent

metal shavings, parts, or tools from falling down drain.

2. Place masking tape over the area to be drilled to help

prevent scratches if drill bit slips.

3. Mark hole with center punch. Use a 1/4" drill bit for a

pilot hole.

4. Using a 1-3/8" hole saw, drill a hole completely through

the sink. Smooth the rough edges with a file.

D

C

1⁄4”

11⁄4”

32

41

Figure 2

14 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

Mounting the Faucet

1. Loosen stem-nut on faucet, remove metal "C" disc

(if attached).

2. Attach large diameter 3/8" (red) drain tube to barb fitting

at the faucet base. This tube should be long enough to

reach the drain clamp.

3. Locate the 1/4" red brine tube that has a preassembled

quick-connect elbow on one end. Connect the open end

to the small barb on the faucet. Make certain that the

tube is not kinked or stressed once the head assembly is

mounted.

4. Slide chrome plate and black rubber washer onto faucet

by threading both drain tubes through the holes in the

plate and washer.

5. Slide white extension onto long threaded section of

faucet. Open end of extension should come in contact

with base of faucet.

6. Slide the washer then the lock washer up threaded

section and thread stem nut on. Do NOT tighten nut at

this time.

7. Apply three (3) to five (5) wraps of plumbers tape to

faucet stem. Screw quick-connector onto end of threads.

8. Wet end of blue 3/8" tube. Push into bottom of connector.

for 3/4". Tug gently to be sure connection is complete.

9. To remove the tube, push on the fittings' collar and pull

the tube out.

10. Holding the faucet, feed the three (3) tubes through the

hole in the sink. Position the faucet handle at a

desired location.

11. Center the faucet and slip "C" disc between the white

extension and the bottom of the counter or sink. Tighten

the stem nut with a wrench until it is tight.

NOTE: Do not overtighten the lock nut. Snug down and

tighten until faucet is secure.

12. Firmly insert goose-neck spout into faucet base.

Countertop

1

3

2

4

5

6

7

8

10

Figure 3

Mounting the System

CAUTION: The filter head assembly should be mounted on a

stud or firm surface. The mounting bracket will

support the weight of the cartridges and help

prevent strain on the water lines.

1. Select location where unit is to be mounted. The head

assembly is mounted in a vertical position.

2. When mounting the ROM IV RO System, two (2) screws

are required to mount the head. Measure up from the

floor of the cabinet 15.5" (39.4 cm). See Figure 4. This

will provide clearance to change the cartridges. The two

(2) screws will be 14" (35.6) apart and level. Screw the

two (2) screws into the wall. Leave a gap between the

screw head and the wall of 1/8". The backside of the

system head has two (2) slots that will fit over the screw

heads and slide down to lock.

12.5" from mounting hole

to bottom of cartridge

2" clearance below cartridges

Figure 4

15 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

Connecting the Faucet

CAUTION: Water supply to the inlet of the ROM IV RO System

should have a separate shut-off valve. If it does

not, a separate shut-off should be installed.

1. Locate the 3/8" blue tubing from the faucet. See Figure

5. The tubing must not have sharp bends or kinks that

would restrict water flow. Cut length as needed. Place a

mark 3/4" (1.9 cm) from the end of the tubing.

IMPORTANT: A length of this 3/8" blue tubing will be

used to connect the storage tank to the manifold. When

cutting this tube, plan for the new piece to be used for

the tank.

Moisten the end of the tubing with water and insert

into the water outlet quick-connect fitting on the head

assembly . Push in until the mark is flush with the

quick-connect fitting.

2. Gently pull back on the tubing to ensure it is connected

properly. If the tubing comes out of fitting, cut a small

section off of the tubing and reconnect.

NOTE: Tubing may be quickly and easily removed from the

fitting if necessary. First, turn off the water supply to

the filter. Open faucet, then press in the collet around

the fitting while pulling the tubing with your other hand.

Blue 3/8"

Red 1/4"

ROM-PST

ROM-G75

ROM-PRE

Untreated

Water In

Red 3/8"

Blue 3/8"

Carbon Filtered

Only Water Out -

Remove Plug

Figure 5

Water

Supply

Adapter

Cold Water Supply

To Cold Water Faucet

16 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

Connecting the Water Supply

1. Determine the length of 3/8" white plastic tubing needed

to connect the inlet on the left side of the filter with the

water supply. Be sure to allow enough tubing to prevent

kinking and cut the tubing squarely. Place a mark 3/4"

(1.9 cm) from the end of the tubing.

2. Wet tubing with water and insert tubing into water supply

fitting 3/4" (1.9 cm) until mark is flush with fitting.

Installing the Drain Clamp

NOTE: If you have a single-basin sink with a disposal unit,

call Technical support at 800.279.9404 for options.

NOTE: Before installing the drain clamp, check the drain

pipes under the sink for corrosion. Corroded pipes

should be replaced before continuing

with installation.

3. Attach the drain clamp to a vertical section of the drain

pipe, about 6" (15.2 cm) above the trap. Make sure

the opening on the drain clamp is facing towards the

drinking water faucet. See Figure 6.

6 inches

Figure 6

4. Using the fitting hole of the drain clamp as a guide, drill

a 1/4" (0.6 cm) hole through one side of the drain pipe.

See Figure 7.

5. Remove the drain clamp from the drain pipe and enlarge

the hole with a 3/8" (1.0 cm) drill bit. Use a file to remove

rough edges from the drilled hole.

Figure 7

6. Make sure the black rubber gasket is adhered to the

inside of the drain clamp and place the drain clamp

assembly over the drilled hole. Look through the hole

and position the clamp so that the center of the clamp

hole is slightly higher (about 1/16") than the center of the

drilled hole, see Figure 8. Tighten the clamp securely.

7. Screw the plastic compression nut onto the drain clamp

until finger-tight.

Figure 8

Connecting the Faucet to the Drain

NOTE: This is a gravity-fed drain line. Any loops, kinks or

sharp bends must be eliminated before proceeding.

Failure to create a straight line to the drain may

result in reject water leaking through the air gap in

the faucet onto the countertop and below the faucet.

1. Align the 3/8" red tubing from the faucet with the

compression nut on the drain clamp, see Figure 9.

Create as straight a path as possible with the tubing.

Cut the tubing squarely below the nut and remove the

internal and external burrs.

2. Loosen the compression nut two (2) complete turns.

Insert the tubing into the nut until it stops. Tighten with

fingers, then tighten one (1) to two (2) turns with

a wrench.

Figure 9

17 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

INSTALLING THE CARTRIDGES

The cartridges are identified by the color of the label and the

model number.

Cartridge #1: Everpure ROM-PRE Filter Cartridge

Cartridge #2: Everpure ROM-G75 RO Cartridge

Cartridge #3: Everpure ROM-PST Filter Cartridge

Install the cartridges in order. If the cartridges are installed

out of order, the system will not filter correctly.

Install the ROM-G75 Cartridge

The ROM-G75 Reverse Osmosis (RO) Cartridge is installed in

the vertical position. There are three (3) quick-connect ports

that are labeled.

• Inlet -White

• Permeate (product water ) - Blue

• Drain - Red

This cartridge is installed before the two outside cartridges.

The manifold assembly should already be mounted securely.

2

7

5

1

9

12

11

4

450

6

Swing

Down

3

Figure 10

The numbers in Figure 10 refer to the steps below.

1. Locate the red drain tubing with the preassembled elbow

fitting. This tube has already been assembled to

the faucet.

CAUTION: DO NOT remove the quick-connect elbow fitting

from the red tubing. This assembly contains

a flow control that may become damaged if

removed. The efficiency of the ROM IV RO System

may be affected.

2. Mark the short piece of red drain tubing 5/8" (1.6 cm)

from the end.

3. Insert the tube into the red drain port at the bottom of

the cartridge, Figure 11. Push it in until the mark is flush

with the quick-connect fitting.

4. The product water tube (blue) is preassembled to the

manifold. Inspect the check valve to be certain the flow is

in the upward direction.

5. Mark the short piece of tubing 5/8" (1.6 cm) from

the end.

6. Insert the tube into the blue permeate port at the bottom

of the ROM-G75 Cartridge, Figure 11. Push it in until the

mark is flush with the quick-connect fitting.

7. Locate the tubing that will become installed into the

inlet port of the ROM-G75 Cartridge. The tubing should

be installed in the elbow fitting coming out of the auto

shut-off valve. The length of the tube that is visible must

be 1" (2.5 cm).

8. Measure 5/8" (1.6 cm ) from the end of the tube and

mark it.

9. Rotate the quick-connect elbow upward 450.

10. Position the ROM-G75 Cartridge so the inlet port is in

position in front of the tubing. The cartridge will be tipped

out at the bottom and will not yet be held by the clips.

11. Push the cartridge onto the tubing until the 5/8" (1.6 cm)

mark is flush with the quick-connect fitting.

12. Swing the cartridge down. The elbow fitting must move

with the cartridge. The cartridge will snap into the two

clips. The tubing and the elbow should point directly into

the inlet port.

13. If the tubing does not position directly into the inlet port,

the cartridge should be slid up or down as needed.

NOTE: The bottom of the ROM-G75 Cartridge will be

supported by the lower leg of the bracket.

Blue Permeate

Red Drain

ROM-G75

Cartridge

Figure 11

18 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

Install the ROM-PRE Cartridge

Locate the ROM-PRE Cartridge and inspect the o-rings. They

should be clean and lightly lubricated with silicone grease.

1. Line up the tabs with the slots in the opening on the left

side of the head assembly. See Figure 12.

2. Insert the cartridge to full depth.

3. Rotate the cartridge 900 to the right (clockwise) to lock it

in place.

Figure 12

Install the ROM-PST Cartridge

Locate the ROM-PST Cartridge and inspect the o-rings. They

should be clean and lightly lubricated with silicone grease.

1. Line up the tabs with the slots in the opening on the right

side of the head assembly. See Figure 12.

2. Insert the cartridge to full depth.

3. Rotate the cartridge 900 to the right (clockwise) to lock it

in place.

Connecting the Storage Tank to the System

CAUTION: When tank is full, it weighs approximately 30 lbs

(13.6 kgs). Provide ample support under the tank.

1. Thread the tank valve onto the tank opening by turning it

clockwise until snug.

2. Locate the piece of blue tubing (cut off earlier) and mark

it 3/4" (1.9 cm) from the end. Moisten one end of the blue

tubing with water and insert with a twisting motion into the

port of the tank valve until the 3/4" mark is flush with the

quick-connect fitting.

3. Mark the remaining end 3/4" (1.9 cm) from the end. Wet the

end and insert into the open connection on the last (right

side) head until the 3/4" mark is flush with the quick-

connect fitting.

NOTE: The pressurized storage tank has capacity of 3.2 gals

(12.1 L). The tank's air pressure is factory-set at 5 to

7 psi when tank is empty.

PUTTING THE SYSTEM INTO OPERATION

CAUTION: Make certain head assembly is firmly attached

to wall to prevent it from falling and possibly

becoming damaged.

NOTE: The ROM IV RO System does not produce a high

volume of water on-demand as an ordinary filter

does. Water is produced at a slow, drop-by-drop rate.

The system requires about three (3) hours to fill the

storage tank. As water is taken from the tank, the

system automatically starts the cycle of replacing the

water and then stops water production when the tank

is full.

There are several steps that must be followed to properly

place the ROM IV RO System into operation. Before the supply

water is turned ON, see Figure 13:

• Remove quick-connect plug on the left end of the

manifold and connect the port with tubing to a drain.

• Turn shut-off valve to the OFF position.

• Turn tank valve to the OFF position.

• The faucet lever should be closed.

Quick-Connect Plug

Incoming Water Shut-Off Valve

Tank Valve

Figure 13

1. To flush the ROM-PRE Cartridge to a drain, remove the

quick-connect plug on the left end of the manifold and

insert a temporary length of tubing into the connection.

NOTE: Tubing and ball valve are supplied.

Turn on the incoming water supply. Flush the ROM-PRE

Cartridge to a drain for five (5) minutes at full flow to

remove any carbon fines.

CAUTION: Failure to flush the ROM-PRE Cartridge will

damage the ROM-G75 RO Membrane Cartridge.

This condition will void the warranty.

2. After five (5) minutes, close the incoming water valve.

Remove the temporary tubing and re-insert the quick-

connect plug.

19 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

3. Make sure tank valve is in the open position.

4. Open the shut-off valve.

5. Slowly turn on incoming water supply.

6. Open the faucet to turn on flow. Let the faucet run/drip

for 12 hours, then close it.

7. Allow three (3) hours for the tank to fill. Continue to

periodically check the installation for leaks. After

the storage tank is filled, open the faucet to flush the

postfilter cartridge (on the right side of the filter housing

assembly). Allow four (4) to five (5) minutes for all of the

water to drain from the tank. Close faucet and allow tank

to fill.

8. Repeat Step 7 three (3) times.

CAUTION: Visually check the entire system for leaks. If a

leak is present, see Troubleshooting.

NOTE: Initially, the water may appear cloudy. This is a result

of air trapped in the postfilter cartridge. It is not

harmful and will disappear in a matter of minutes. It

may take up to a week after installing a new

postfilter cartridge for the trapped air to dissipate.

The system is ready for operation. You can now enjoy quality

water from the ROM IV RO System.

TESTING YOUR REVERSE OSMOSIS SYSTEM

Total Dissolved Solids (TDS) Test

NOTE: Under NSF/ANSI Standard 58, it is highly

recommended that the product water is tested at

least every six (6) months to verify that the system is

performing satisfactorily.

WHEN TO CHANGE THE CARTRIDGES

The life of the cartridge depends on the water volume used

and the substances in the water. Normally, cartridges should

be changed at intervals of 12 months. Replace the cartridge

sooner if the water pressure at the faucet begins to drop

noticeably or if you notice changes in the taste, color, or flow

of the filtered water.

CHANGING THE CARTRIDGES

Replacement Cartridges:

Everpure ROM-PRE Filter Cartridge - EV929675

Everpure ROM-PST Filter Cartridge - EV929676

Everpure ROM-G75 RO Cartridge - EV929775

The prefilter and postfilter cartridges need to be changed

when the water pressure at the faucet begins to drop

noticeably or if there are changes in taste, color or flow of

the filtered water. All cartridges should be changed at the

same time. The cartridges are color-coded to indicate which

location they are installed into.

NOTE: Only the replacement cartridges listed can be used

with this system. Failure to use the recommended

replacement cartridges will void your warranty.

1. Place a small pan or towel under the ROM IV RO System

to catch any water tha may drip. Turn OFF incoming

water.

2. Remove the two (2) outside cartridges by twisting each

cartridge a 1/4-turn to the left (counterclockwise). Then

pull down to release.

3. Remove the center ROM-G75 Cartridge by swinging the

cartridge up and out, pivoting at the top connection. Once

the cartridge is out of the clips, the quick-connection at

the top can be disconnected. Disconnect both tubes from

the quick-connect fittings at the bottom.

4. Connect the red and blue tubes at the bottom of the new

ROM-G75 Cartridge.

5. Position the new ROM-G75 Cartridge so the inlet port

is in position in front of the tubing at the top of the

cartridge. Push the cartridge onto the tubing until it

reaches full depth. Swing the cartridge down (the elbow

fitting must swing with it) into the clips. Adjust the

cartridge up or down so the tubing and the elbow point

directly into the cartridge.

NOTE: The bottom of the ROM-G75 Cartridge will be

supported by the lower leg of the bracket.

6. Position the ROM-PRE Cartridge under the left side

head. Line up the tabs on the cartridge with the slots in

the head.

7. Push the new cartridge into the head until it can go no

further.

8. Twist the cartridge a 1/4-turn to the right (clockwise)

until it locks in place. Pull gently down to ensure the

cartridge is locked in place.

9. Repeat Steps 6, 7 and 8 for the ROM-PST Cartridge.

CAUTION: The ROM-PRE Cartridge may contain carbon fines

that will be removed during the initial flushing.

Follow the proper flushing procedure to prevent

damage to the ROM-G75 RO Cartridge.

20 ROM IV REVERSE OSMOSIS SYSTEM INSTALLATION AND OPERATION GUIDE

INITIAL FLUSHING OF CARTRIDGES

The installation of new cartridges requires that a preliminary

flushing of the cartridges be performed. This initial flushing

is required to prevent damage to the RO cartridge.

Refer to page 18, Putting the System into Operation, for the

complete flushing procedure.

SANITIZING PROCEDURE  CONTAMINATED WATER

SUPPLY/BOIL ALERTS

When the water system has been contaminated or a boil

water advisory has been discontinued, the ROM IV RO System

must be sanitized. If a boil water advisory has just been

discontinued: Flush the water lines according to your water

supplier's instructions. Open the delivery faucet and flush the

system for about 10 minutes, then follow the filter cartridge

replacement instructions below.

1. Turn off the water supply and open the faucet to

relieve pressure.

2. Remove the filter cartridges and discard in trash. Wash

hands with soap and warm water.

NOTE: If a drip pan is used, clean with dish soap and

warm water.

NOTE: The following steps require placing bleach into

the ROM IV RO System. Pentair Everpure offers a

hollow cartridge, Everpure 2JT Flushing/Sanitizing

Cartridge (EV9608-10), that is designed for this

application. The following steps describe how to use

the Pentair Everpure 2JT Cartridge (EV9608-10).

Sanitization Procedure With The Pentair

Everpure 2JT Cartridge (EV9608-10)

3. Grasp the tip of the outlet tower center, top of the

cartridge and pull out gently. The entire central plug with

the long tube attached will come out, leaving a hole.

Figure 14

4. Add about a teaspoon of laundry bleach (5.25% sodium

hypochlorite solution) to the empty flushing cartridge

through the hole in the top.

5. Lubricate o-ring with a high quality silicone lubricant.

Replace the central plug assembly and insert the

flushing cartridge into the first (left side) installed head.

NOTE: Do not use petroleum jelly to lubricate the o-rings. It

will degrade the o-rings.

CAUTION: DO NOT install the ROM-G75 RO Membrane

Cartridge for the sanitization procedure. The

solution will severely damage the membrane.

Figure 15

6. Install a port plug into the last (right side) head.

7. When the RO cartridge is removed, the blue tube from

the bottom of the cartridge can be used for the sanitizing

procedure. Remove the quick-connect elbow on the blue

tube and remove the short tube at the top

quick-connect elbow.

8. Connect the bottom end of the blue tubing to the quick-

connect elbow that is normally connected to the inlet

port of the RO cartridge.

9. The tank valve and the manifold shut-off valve should be

open. The faucet should be OFF.

10. Slowly open the water supply valve. Open the faucet and

monitor the water flowing out of the ROM IV RO System.

When the smell of chlorine is present, close the faucet

valve. The storage tank will fill with chlorinated water.

11. Wait for a period of at least 30 minutes to allow adequate

disinfection time.

12. Turn off the incoming water valve.

13. Open the faucet valve. The storage tank will drain out.

14. When the storage tank is emptied, close the faucet valve

and remove the 2JT Cartridge.

15. Install a new ROM-PRE Cartridge in the first (left

side) head.

16. Open the faucet valve and slowly open the incoming

water valve. Allow water to run for five (5) minutes. This

will flush carbon fines out of the new cartridge.

17. Close the faucet allowing the tank to fill three (3) to five

(5) minutes.

18. Turn off the incoming water valve.

19. Open the faucet to allow the tank to empty.

20. When the water flow has stopped, close the faucet and

open the incoming water valve to refill the tank for three

(3) to five (5) minutes.

21. Repeat Steps 17, 18 and 19 four (4) times.

22. Turn off the incoming water valve and open the faucet to

remove pressure.

23. Install the new ROM-PST Cartridge in the last (right

side) head.

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